Search "best ab exercises" and you will find a hundred listicles with the same fifteen moves shuffled into a different order. This guide does something more useful: it ranks fifteen exercises on transparent criteria, gives you the form cues for every single one, and shows you how to turn them into a complete ab program.
A quick note on how to read the ranking. This is a general, editorial ranking, not a laboratory result. We scored each exercise on three practical qualities: how much resistance and range of motion it places on the abdominals, how much stress it puts on the lower back and neck, and how quickly a beginner can learn to do it safely. Exercises that are hard to load or hard on the spine rank lower than equally effective but safer alternatives. Nothing here is medical advice. If you have a history of back pain or injury, check with a qualified professional before adding loaded spinal work.
How We Ranked These Exercises
Three criteria, each scored from 1 to 10.
- Core demand. How much load, range of motion, and tension the movement places on the rectus abdominis, the obliques, and the transverse abdominis. Loaded movements that take the abs through a long range score highest.
- Joint friendliness. How much stress the movement places on the lower back, neck, and hip flexors. Lower stress scores higher.
- Learning curve. How fast a beginner can perform the movement with clean form. Faster is better.
The composite score set the order. This is the reason the traditional floor situp does not appear: it demands less from the abs than a hanging leg raise or cable crunch while placing more shear stress on the lower back. Where two exercises are close, the safer one ranks ahead.
The 15 Best Ab Exercises, Ranked
1. Hanging Leg Raise
The top pick, if you have a pullup bar and enough grip strength. The hanging leg raise loads the rectus abdominis through a long range using your own legs as resistance, hits the lower portion of the muscle hard, and forces the transverse abdominis to brace the spine against the pull of the legs. Done without swinging, it is also easy on the lower back and neck.
Form cues:
- Hang from a bar with arms fully extended and shoulders packed down.
- Engage your lats so your body stops swinging before you start.
- Lift your legs by tilting your pelvis and curling your spine forward, not by letting the hip flexors do everything.
- Raise until your legs reach parallel or higher, then lower over 2 to 3 seconds.
- Do not swing, kip, or use momentum.
If you cannot do one clean rep, start with bent-knee raises and build up. See our full hanging leg raise guide for a step-by-step progression.
2. Cable Crunch
The best weighted ab exercise for most people, because a cable provides constant tension through the full range and lets you add load in tiny increments. It trains spinal flexion against resistance, which is the primary job of the rectus abdominis.
Form cues:
- Kneel facing a high pulley with a rope attachment.
- Hold the rope beside your head with your elbows relaxed.
- Keep your hips stationary and flex your spine, curling your ribcage toward your pelvis.
- Pause briefly at the bottom, then return under control.
- Do not hinge at the hips; the movement is a spine curl, not a hip hinge.
Because you can add as little as 2.5 pounds at a time, this is the easiest exercise to progress reliably. See our cable ab exercise guide for more variations.
3. Ab Wheel Rollout
Brutally effective because it forces the abs to work eccentrically, lengthening under tension through a long range, while the obliques and lats brace as stabilizers. The catch is that it is hard: many beginners cannot do a single clean rep from the knees.
Form cues:
- Kneel on a pad with the wheel in front of you and brace your abs hard.
- Roll the wheel forward slowly, keeping your back flat rather than arched.
- Go only as far as you can while holding a neutral spine.
- Use your abs to pull the wheel back to the start.
The classic mistake is letting the lower back arch as you roll out. If your back arches, you have gone too far. Shorten the range and build up. See our ab wheel rollout guide for the full progression from partial to standing.
4. Weighted Decline Situp
A classic hypertrophy movement for the rectus abdominis. The decline angle increases the range of motion, and holding a plate or dumbbell lets you add progressive overload. The caution: this loads the spine, so it is not for people with existing lower back issues.
Form cues:
- Set a decline bench to a 30 to 45 degree angle.
- Hold a plate or dumbbell against your chest.
- Lower under control until your back is just above the bench.
- Crunch back up with your abs, not with momentum.
- Do not drop to the bottom and bounce; the bottom is where the abs work hardest, and bouncing removes that work.
If you have any back pain, swap this for the cable crunch.
5. Plank
The best isometric exercise for teaching the abdominal brace. It produces a moderate rectus abdominis demand but a high transverse abdominis demand, which is what stabilizes the spine in daily life and under a heavy barbell. Its weakness is that it does not train spinal flexion, so it does not build much visible muscle on its own.
Form cues:
- Set your elbows under your shoulders with forearms parallel.
- Keep your body in a straight line from head to heels.
- Brace your abs as if preparing for a punch and squeeze your glutes.
- Do not let the hips sag or pike up.
- Actively brace for the whole hold; passively hanging in the position is far less useful.
See our plank guide for scaling from knee plank to weighted plank.
6. Reverse Crunch
The best bodyweight option for the lower portion of the rectus abdominis. It works through posterior pelvic tilt and leg lift with minimal spine load, making it gentle on the lower back.
Form cues:
- Lie on your back with knees bent and arms by your sides.
- Press your lower back into the floor.
- Use your abs to curl your pelvis up off the floor, lifting your hips slightly.
- Lower slowly without letting your legs swing.
The movement is a small, controlled pelvic tilt, not a big leg throw.
7. Dead Bug
The best beginner exercise for learning the abdominal brace with zero spine load. It teaches you to keep your lower back stable while your limbs move, which carries over to everything else on this list.
Form cues:
- Lie on your back with arms straight up and knees bent to 90 degrees.
- Press your lower back firmly into the floor.
- Slowly extend one arm and the opposite leg toward the floor while keeping your back flat.
- Return and switch sides.
- Exhale as you extend and keep the lower back glued down the whole time.
See our dead bug guide for a full breakdown of the anti-extension pattern.
8. Hollow Body Hold
A gymnastics staple that builds total-body tension and isometric ab strength. It is harder than it looks because it asks you to hold a shallow curve while keeping the lower back pinned.
Form cues:
- Lie on your back with arms overhead and legs extended.
- Press your lower back into the floor.
- Lift your shoulders and legs a few inches off the ground.
- Hold a shallow "banana" curve, keeping the lower back on the floor.
- Scale by bending your knees or bringing your arms down until you can hold a clean position.
See our hollow body hold guide for a progression that builds to the full position.
9. Side Plank
The go-to isometric for the obliques and the lateral core. It is more functional than side bends, which load the spine through a small, awkward range.
Form cues:
- Support yourself on one forearm with the elbow under the shoulder.
- Stack your feet (or drop the top knee for an easier version).
- Lift your hips until your body forms a straight line.
- Brace and do not let the hips sag or rotate forward.
See our side plank guide for form details and progressions.
10. Russian Twist
A rotational movement for the obliques. It is useful, but it must be done with a long, controlled spine to protect the lower back.
Form cues:
- Sit with knees bent and feet planted, or raised for a harder version.
- Lean back slightly while keeping your spine long and your chest tall.
- Rotate your torso side to side, moving from the ribs rather than just swinging your arms.
- Keep the range controlled and the lower back out of excessive rounding.
If your lower back starts to round or you feel strain, reduce the range or skip the weight. See our Russian twist guide for safe execution.
11. Pallof Press
The cleanest anti-rotation exercise there is. It trains the core to resist being pulled into rotation, which is exactly the job the core does during running, throwing, and lifting.
Form cues:
- Set a cable at chest height and stand side-on to it.
- Hold the handle at your chest and press it straight out in front of you.
- Resist the cable's pull as it tries to rotate your torso.
- Hold for a second, then return the handle to your chest.
- Keep your ribs down and do not let your torso twist.
You can also do this with a resistance band anchored at chest height.
12. Standing Cable Chop
A diagonal pattern that trains rotation and anti-rotation together, which makes it excellent for athletes and anyone who moves in the real world.
Form cues:
- Set a cable at the high pulley and stand side-on to it.
- Grasp the handle with both hands.
- Chop diagonally down and across your body, rotating through your torso.
- Keep your hips stable and let the rotation come from the core.
- Return under control.
For a low-to-high variation, set the cable low and chop upward.
13. Bird Dog
A spinal stability exercise that is one of the safest movements on this list, and the one most often recommended for people with back issues.
Form cues:
- Start on all fours with a neutral spine.
- Extend one arm and the opposite leg until both are in line with your torso.
- Avoid arching or twisting as you reach.
- Hold briefly, then return and switch sides.
- Move slowly and keep the movement small if you struggle to stay stable.
14. Bicycle Crunch
A bodyweight movement with strong oblique involvement, and a better alternative to the traditional crunch. It can still aggravate the lower back if done sloppily, so form matters.
Form cues:
- Lie on your back with your hands lightly behind your head.
- Bring one elbow toward the opposite knee while extending the other leg.
- Rotate through your torso, not just your neck.
- Move slowly and keep your lower back from over-arching.
- Do not pull on your head.
15. Mountain Climbers
A dynamic plank variation that adds a conditioning element to the anti-extension pattern. It is a good finisher, though it is more about stability and work capacity than muscle building.
Form cues:
- Start in a high plank with your hands under your shoulders.
- Drive one knee toward your chest, then switch legs in a running motion.
- Keep your hips level and your core braced the whole time.
- Do not let your hips bounce up or your lower back sag.
See our mountain climbers guide for a full form breakdown.
Sample Ab Workouts Using These Exercises
Beginner Workout (3 times per week)
- Dead bug: 3 sets of 8 reps per side
- Plank: 3 sets of 30 second holds
- Reverse crunch: 3 sets of 12 reps
- Bird dog: 3 sets of 10 reps per side
Intermediate Workout (3 times per week)
- Hanging knee raises: 3 sets of 12 reps
- Cable crunch: 3 sets of 12 reps at a moderate weight
- Ab wheel rollout (from knees): 3 sets of 8 reps
- Side plank: 3 sets of 30 second holds per side
- Russian twist (bodyweight): 3 sets of 20 reps total
Advanced Workout (4 times per week)
- Hanging leg raise (straight leg): 4 sets of 10 reps
- Cable crunch (heavy): 4 sets of 8 reps
- Ab wheel rollout (full knee range or standing partial): 3 sets of 6 reps
- Weighted decline situp: 3 sets of 10 reps with a 25 lb plate
- Hollow body hold: 3 sets of 45 second holds
How to Progress These Exercises
Progressive overload applies to abs like any other muscle. For loaded movements such as the cable crunch and weighted decline situp, add 2.5 to 5 pounds when you can complete all sets and reps with two reps left in reserve. For bodyweight movements such as the hanging leg raise and plank, add reps or hold time, or move to a harder variation (straight leg from bent knee, weighted from bodyweight). For the ab wheel, extend the range from partial to full knee and eventually standing partial. Track weights and reps in a log; what gets measured gets progressed.
Frequently Asked Questions
What is the single best ab exercise?
The hanging leg raise, if you have a pullup bar and the grip strength for it. It loads the rectus abdominis through a long range with your lower body as resistance and is joint-friendly when done without swinging. If you cannot do clean hanging leg raises, the cable crunch and ab wheel rollout are close alternatives.
Do planks build visible abs?
Planks build isometric core strength, which matters for spinal stability, but they do not build much muscle size. Visible abs come from hypertrophy plus low enough body fat. Combine planks with loaded flexion movements like cable crunches and hanging leg raises, and manage your diet if visibility is the goal. See our body fat guide for the visibility side of the equation.
How many ab exercises should I do per workout?
Four to five exercises is plenty. Pick two loaded movements for hypertrophy, one or two bodyweight movements for stability, and one isometric hold such as a plank or side plank. Three to four sets per exercise is enough.
How often should I train abs?
Two to four times per week. Abs recover faster than larger muscles, but hard sessions still need roughly 48 hours between them. Daily ab training gives diminishing returns and raises injury risk. See our guide on whether to train abs every day.
What is the best ab exercise for the lower abs?
The hanging leg raise and the reverse crunch. The lower portion of the rectus abdominis works hardest in movements that tilt the pelvis and lift the legs rather than in pure spinal flexion like a crunch. See our lower ab guide for the full picture.
Are these exercises safe for the lower back?
Most are safe with proper form. Loaded spinal flexion such as the weighted decline situp and cable crunch, and rotational movements done with poor form, can stress the lower back. If you have back pain, favor dead bugs, bird dogs, planks, side planks, and the Pallof press. See our guide on lower back pain and ab training.
Do I need equipment to build abs?
No. Dead bugs, hollow body holds, planks, side planks, reverse crunches, bird dogs, bicycle crunches, and mountain climbers need no equipment. Equipment such as a cable machine or ab wheel makes progressive overload easier, which matters for muscle growth over time.
A Note on Safety
This article is general fitness information, not medical advice. If you have a history of back, neck, or shoulder injury, or if you experience pain during any of these movements, stop and consult a qualified professional. Start lighter and shorter than you think you need to, and prioritize clean form over reps.